Image is of a typical part(s); part appearance varies by application.
The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. This automatic locker replaces the stock side and pinion gears while utilizing the factory open differential case. A new and stronger center pin fits in oval slots between two inner drivers. Under load the center pin forces the inner drivers outward to engage the outer axle couplers on each side of the case. This provides locked power to both drive wheels, providing greater traction. When turning, one driver is unloaded and the teeth can ratchet across each other creating differential action to reduce tire wear and make turning the vehicle easier.
Features
Made from 9310 steel for added strength
Revolutionary spring & pinion design for simple installation
